Cost-Based Pricing Strategies: A Comprehensive Guide to Price Setting

Explore how businesses set prices through Cost-Based Pricing Strategies. This practical guide breaks down cost calculation, markup determination, and real-world applications to ensure profitability, transparency, and sound financial decision-making.

PRICING STRATEGIES

10/27/202515 min read

Pricing decisions rank among the most critical choices businesses make, directly impacting profitability, market positioning, and long-term viability. Among various pricing methodologies, cost-based pricing remains one of the most widely used approaches, offering simplicity and ensuring costs are covered while generating desired profit margins.

What Is Cost-Based Pricing?

Cost-based pricing is a pricing strategy where businesses set prices by calculating the total cost of producing or acquiring a product or service, then adding a markup or profit margin to determine the final selling price. This approach starts with internal cost structures rather than external market factors, making it fundamentally inward-focused.

The basic formula is straightforward: Price = Cost + Markup

If a product costs $50 to produce and the company desires a 40% markup, the selling price becomes $70 ($50 + $20). This simplicity makes cost-based pricing accessible to businesses of all sizes and explains its enduring popularity across industries.

Cost-based pricing encompasses several variations, each with distinct calculations and applications, but all share the common foundation of using costs as the primary determinant of price.

How Cost-Based Pricing Works

Implementing cost-based pricing requires understanding costs, determining appropriate markups, and systematically applying these calculations across product lines.

Step 1: Calculate Total Costs

The foundation of cost-based pricing is accurate cost calculation. This involves identifying and measuring all costs associated with producing, acquiring, and delivering products or services.

Direct Costs include materials, labor, and other expenses directly attributable to specific products. For a furniture manufacturer, direct costs include lumber, fabric, hardware, and assembly workers' wages. These costs vary directly with production volume—making more chairs requires proportionally more materials and labor.

Indirect Costs (overhead) include expenses that support overall operations but aren't directly tied to specific products: rent, utilities, administrative salaries, insurance, equipment depreciation, and marketing. A factory's heating costs benefit all products manufactured there, allocating individual items that are necessary but somewhat arbitrary.

Businesses must decide whether to use full costing (allocating all direct and indirect costs to products) or variable costing (allocating only direct costs and variable overhead to products). Full costing ensures all expenses are recovered through pricing, but it can make products appear more expensive than competitors' products when different allocation methods are used.

Step 2: Determine Desired Markup

Once costs are calculated, businesses determine the markup or profit margin they require. This decision considers several factors:

  • Industry standards and norms - Grocery stores typically operate on 2-5% net margins, while luxury goods might target 60-80% margins

  • Business financial goals - Required return on investment, growth funding needs, and shareholder expectations

  • Competitive positioning - Premium brands require higher margins; volume-focused businesses accept lower margins

  • Risk and uncertainty - Higher-risk products or markets justify higher margins

  • Value delivered - Products solving significant problems can command premium markups

Markup can be expressed as a percentage of cost or as a percentage of the selling price (margin). A 50% markup on cost differs from a 50% margin on price:

  • 50% markup on $100 cost = $150 selling price (33% margin)

  • 50% margin means cost is 50% of price; $100 cost = $200 selling price (100% markup)

Understanding this distinction prevents costly pricing errors.

Step 3: Apply Pricing Formula

With costs calculated and markup determined, the business applies the pricing formula consistently across products. A retailer using keystone pricing (100% markup) doubles wholesale costs to determine retail prices. A manufacturer targeting 30% gross margins sets prices to ensure that costs account for 70% of the selling price.

Step 4: Adjust for Market Realities

Pure cost-based pricing often requires adjustments for market conditions. If calculated prices substantially exceed competitive offerings, businesses must either accept lower margins, reduce costs, or justify premium positioning through differentiation. If calculated prices fall well below market rates, companies might increase margins to capture available value rather than leaving money on the table.

Step 5: Monitor and Revise

Costs change as suppliers adjust prices, labor rates increase, and operational efficiencies improve or deteriorate. Effective cost-based pricing requires regular cost reviews and corresponding price adjustments to maintain targeted margins. Many businesses review costs quarterly or semi-annually and adjust prices as needed.

Types of Cost-Based Pricing Strategies

Cost-based pricing encompasses several distinct approaches, each suited to different business contexts and objectives.

Cost-Plus Pricing

The most straightforward approach, cost-plus pricing, adds a fixed markup percentage to total costs. If a product costs $80 to produce and the business uses a 25% markup, the price becomes $100. This method's simplicity makes it popular among manufacturers, contractors, and service providers who can accurately calculate costs.

Advantages: Easy to calculate and explain, ensures cost recovery, provides consistent margins across products, and simplifies pricing decisions.

Disadvantages: Ignores customer value perception, competitive dynamics, and demand elasticity. May underprice high-value products while overpricing low-value offerings.

Common Uses: Construction contracts, government procurement, manufacturing, and professional services billing.

Markup Pricing

Similar to cost-plus but often expressed as standard multipliers applied to wholesale or production costs. Retailers commonly use keystone pricing (2x markup), while luxury retailers might use 3x, 4x, or higher multipliers depending on positioning and operational costs.

A retailer purchasing items wholesale for $30 using keystone pricing sells them at $60. The 100% markup covers retail operational costs (rent, staff, shrinkage, marketing) while generating profit.

Advantages: Extremely simple to implement, traditional and well-understood in retail, provides rule-of-thumb guidance for quick pricing decisions.

Disadvantages: Fails to account for different operational costs across products, ignores competitive pricing, and treats all products identically regardless of value or demand.

Common Uses: Retail (especially fashion, home goods, specialty retail), wholesale distribution, food service.

Target Return Pricing

This approach calculates prices necessary to achieve specific return on investment (ROI) targets. A company investing $1 million in production capacity, targeting a 20% annual ROI, needs $200,000 in annual profit. If the expected annual volume is 50,000 units with $15 per-unit costs, the required price is:

Price = Cost + (Target Profit / Expected Volume) Price = $15 + ($200,000 / 50,000) = $15 + $4 = $19

Advantages: Aligns pricing with financial objectives, ensures investment returns, provides clear financial accountability, and links operational decisions to economic outcomes.

Disadvantages: It depends heavily on volume projections that may prove inaccurate, ignores demand elasticity (higher prices might reduce volume below projections), and becomes problematic if actual volume differs significantly from forecasts.

Common Uses: Capital-intensive industries (automotive, utilities, telecommunications), new product launches with specific ROI targets, publicly traded companies with shareholder return expectations.

Absorption Pricing

Also called full-cost pricing, this method allocates all costs—both variable and fixed—to products. Every product must recover its share of overhead, ensuring total costs are covered across the business.

A manufacturer with $500,000 in annual overhead, producing 100,000 units, allocates $5 per unit to overhead. If direct costs are $12 per unit and the desired markup is 30%, the price becomes:

Price = (Direct Costs + Allocated Overhead) × (1 + Markup %) Price = ($12 + $5) × 1.30 = $22.10

Advantages: Ensures all costs are recovered, prevents pricing that seems profitable on variable costs but loses money when overhead is considered, and provides comprehensive cost visibility.

Disadvantages: Overhead allocation methods are somewhat arbitrary, can make prices uncompetitive if overhead is high, and penalize products that could be profitable at lower prices, covering variable costs and contributing to overhead.

Common Uses: Manufacturing with significant overhead, government contracting, cost accounting systems, and industries with regulatory pricing oversight.

Breakeven Pricing

This approach identifies the minimum price necessary to cover all costs without profit. Breakeven pricing is rarely used as a primary strategy. Still, it serves as a floor price—the absolute minimum acceptable in exceptional circumstances, such as clearing excess inventory, entering new markets, or responding to competitive threats.

Breakeven Price = Total Costs / Units Produced

If total costs are $100,000 and production is 10,000 units, the breakeven price is $10 per unit.

Advantages: Establishes clear pricing floors, useful for special situations and negotiations, helps evaluate whether a specific business is worth accepting, and prevents money-losing pricing decisions.

Disadvantages: Generates no profit, unsustainable as a long-term strategy, ignores opportunity costs of capital and management attention.

Common Uses: Clearance sales, contract negotiations, market-penetration pricing, and capacity utilization decisions during slow periods.

Rate of Return Pricing

Similar to target return pricing, but specifically focuses on achieving desired rates of return on invested capital. This approach is common in regulated industries where pricing must justify returns to investors while preventing monopolistic exploitation.

Advantages: Provides clear financial justification for pricing, aligns with capital budgeting and investment evaluation, and satisfies regulatory requirements in specific industries.

Disadvantages: Complex calculations, requires accurate capital allocation, depends on volume forecasts, and may not reflect competitive realities.

Common Uses: Utilities, telecommunications, regulated industries, infrastructure projects, capital-intensive businesses.

Companies and Industries Using Cost-Based Pricing

Cost-based pricing appears across virtually every industry, though its prominence varies by sector.

Manufacturing

Manufacturers extensively use cost-based pricing, particularly cost-plus and absorption pricing methods. General Electric, Caterpillar, and countless smaller manufacturers calculate production costs, allocate overhead, and add markups to determine prices. The tangible nature of manufacturing costs—materials, labor, equipment—makes cost-based approaches intuitive and relatively straightforward to implement.

Construction and Contracting

Construction companies like Bechtel, Turner Construction, and local contractors typically price projects using cost-plus methods. They estimate labor hours, materials, equipment, and subcontractor costs, add overhead allocations and profit margins, then submit bids. Many government contracts explicitly require cost-plus pricing with maximum allowable markups, making this approach standard practice.

Retail

Traditional retailers, including Walmart, Target, and specialty stores, use markups over wholesale costs. Walmart's "everyday low prices" strategy employs consistent, modest markups across products, while specialty retailers use higher multipliers. The simplicity of doubling wholesale costs (keystone pricing) or applying category-specific markups makes cost-based pricing operationally practical when managing thousands of SKUs.

Food Service and Restaurants

Restaurants calculate food costs (ingredients and preparation labor), then apply standard multipliers—often 3x to 4x — for food costs to determine menu prices. A dish costing $5 in ingredients might be priced at $15-20, with the markup covering kitchen overhead, front-of-house labor, rent, utilities, and profit. This approach provides simple, consistent pricing across menus.

Professional Services

Law firms, consulting companies, and professional service providers often use cost-plus pricing based on labor costs. If an attorney's compensation and benefits cost the firm $100 per hour, the firm might charge clients $300-400 per hour, with the markup covering overhead and profit. McKinsey, Deloitte, and law firms globally use variations of this approach.

Utilities

Electric, water, and gas utilities operate under rate-of-return regulation, in which prices must cover costs plus approved returns on invested capital. Duke Energy, Pacific Gas & Electric, and other utilities submit detailed cost analyses to regulatory commissions that approve rates, ensuring reasonable returns without monopolistic pricing. This regulatory framework mandates cost-based pricing.

Advantages of Cost-Based Pricing

Cost-based pricing offers several compelling benefits that explain its widespread adoption.

Simplicity and Ease of Implementation

The most significant advantage is the straightforward calculation, which requires only internal cost data. Businesses don't need extensive market research, competitive intelligence, or sophisticated analysis—just accurate cost accounting. This accessibility makes cost-based pricing viable for small companies that lack the resources for complex pricing strategies.

Guaranteed Cost Recovery

When properly implemented, cost-based pricing ensures all costs are recovered through sales, preventing the disastrous scenario of selling products at a loss. This protection is particularly valuable for businesses with limited financial buffers where sustained losses threaten survival.

Consistent and Justifiable

Cost-based prices are consistent across similar products and easy to justify to stakeholders. When customers question prices, businesses can explain cost structures and required margins, providing transparency that builds trust. This justification is especially valuable in B2B contexts and government contracting, where the pricing rationale matters.

Clear Profit Margins

Built-in markups ensure profitability on each sale, providing clear visibility into profit margins. Management knows exactly what profit each product generates, simplifying financial planning and performance evaluation. This clarity supports better decision-making around product mix, volume targets, and resource allocation.

Reduced Price Wars

In industries where competitors use similar cost structures and pricing approaches, cost-based pricing can stabilize markets and reduce destructive price competition. If everyone prices products at cost plus 30%, competition shifts to quality, service, and innovation rather than pricing alone.

Inflation Protection

As costs rise, cost-based pricing naturally increases prices, protecting margins during inflationary periods. Businesses don't need to raise prices consciously—the pricing methodology automatically maintains margins as input costs rise.

Internal Focus Alignment

Cost-based pricing encourages organizational focus on cost management and operational efficiency. Since prices derive from costs, reducing costs directly improves competitiveness and profitability. This creates powerful incentives for continuous improvement and waste elimination.

Simplifies Pricing Complexity

For businesses with thousands of products, applying uniform markup percentages dramatically simplifies pricing decisions. Rather than individually analyzing each product's value and competitive position, companies can price entire catalogs using cost-based formulas, reducing administrative burden.

Disadvantages and Challenges of Cost-Based Pricing

Despite its advantages, cost-based pricing presents significant limitations that can undermine profitability and competitiveness.

Ignores Customer Value Perception

The most critical weakness is the disconnection from the customer's willingness to pay. A product costing $20 to produce might deliver $200 in customer value, but cost-plus pricing at 30% markup yields only $26—leaving $174 in potential profit on the table. Conversely, a $50-cost product that delivers only $40 in customer value is priced at $65, making it unsaleable regardless of the cost structure.

Cost-based pricing answers "What do we need to charge?" rather than "What will customers pay?" This internal focus can severely limit profitability.

Disregards Competitive Dynamics

Competitors' prices significantly influence what customers are willing to accept, yet cost-based pricing ignores this reality. If competitors sell similar products at $30 and your cost-plus price is $45, you'll lose sales regardless of your cost structure's logic. Market prices, not internal costs, often determine viable pricing.

Inefficiency Rewards

Cost-based pricing can inadvertently reward inefficiency. If poor management or outdated processes create unnecessarily high costs, cost-plus pricing passes these inefficiencies to customers through higher prices. This removes incentives to improve efficiency since higher costs justify higher prices. Efficient competitors using the same markup percentage will always underprice inefficient ones.

Arbitrary Overhead Allocation

Allocating fixed overhead costs to products involves inherently arbitrary decisions. Should allocation be based on units produced, direct labor hours, machine hours, or square footage? Different methods yield different costs and prices for identical products. This arbitrariness undermines the apparent objectivity of cost-based pricing.

Volume Circularity Problem

Target return and breakeven pricing depend on volume projections, but price affects volume. Higher prices reduce demand, lowering volume, which increases per-unit costs (spreading fixed costs over fewer units), requiring higher prices, further reducing volume—a vicious cycle that makes the approach logically circular.

Ignores Demand Elasticity

Cost-based pricing treats all products identically, regardless of demand elasticity. Price-sensitive products (where small increases drastically reduce volume) and price-insensitive products (where customers pay substantially more without volume impact) receive identical markup treatment, leaving money on the table for inelastic products while overpricing elastic ones.

Hinders Premium Positioning

Luxury and premium brands derive value from perceived exclusivity, quality, and status—factors unrelated to production costs. A luxury handbag costing $200 to produce might command a retail price of $2,000 because of brand value, not costs. Cost-based pricing's 30-40% markups would yield $260-280 prices completely disconnected from luxury market realities.

Limits Strategic Flexibility

Cost-based pricing constrains strategic options such as penetration pricing (pricing below cost to gain market share), loss leaders (below-cost products that drive traffic and complementary purchases), or dynamic pricing (adjusting prices based on demand fluctuations). These strategies can create competitive advantages that cost-based approaches preclude.

Difficult in Service Industries

Services often have minimal variable costs and high fixed costs, making cost allocation extremely challenging. What's the "cost" of a consulting hour or a software user license? Different allocation methodologies yield vastly different answers, undermining cost-based pricing's apparent objectivity.

Vulnerable to Disruption

Competitors with different cost structures (offshore manufacturing, automation, alternative business models) can dramatically underprice cost-based incumbents. Kodak's cost-based film pricing became irrelevant when digital photography eliminated film costs. Blockbuster's cost-based video rental pricing couldn't compete with Netflix's subscription model.

When to Use Cost-Based Pricing

Cost-based pricing works best in specific circumstances but can be problematic in others.

Ideal Situations:

Commodity Markets - When products are undifferentiated and customers won't pay premiums, cost-based pricing ensures cost recovery while remaining competitive. Basic building materials, agricultural commodities, and standard industrial supplies fit this category.

Government and Regulated Contracts - When regulations mandate cost-plus pricing or require cost justification, businesses have no alternative. Defense contractors, utilities, and government vendors must use cost-based approaches.

Custom or Made-to-Order Products - When each product is unique (custom software development, construction projects, specialized manufacturing), estimating costs and adding markups provides practical pricing frameworks, given the lack of comparable market prices for reference.

New Products Without Market Comparables - When launching entirely novel products with no competitive benchmarks, cost-based pricing provides a starting point, ensuring, at a minimum, that prices cover costs while market pricing knowledge develops.

Internal Transfer Pricing - When divisions of large companies transact internally, cost-based transfer pricing ensures fairness and accountability while avoiding market-price volatility that can affect internal operations.

High Cost Transparency Environments - When customers understand cost structures (B2B industrial products, professional services), cost-based pricing with reasonable markups feels fair and transparent, facilitating sales.

Problematic Situations:

Highly Competitive Consumer Markets - When numerous alternatives exist and customers are price-sensitive, cost-based pricing that exceeds competitive benchmarks fails regardless of internal cost logic.

Premium and Luxury Segments - When brand value, status, and perceived quality drive pricing, cost-based approaches dramatically underprice products relative to value delivered and customer willingness to pay.

Software and Digital Products - When marginal costs approach zero but development costs are high, cost-based pricing becomes meaningless. Should pricing reflect total development costs or near-zero distribution costs?

Dynamic Demand Situations - When demand fluctuates significantly (airline seats, hotel rooms, event tickets), static cost-based pricing leaves substantial revenue on the table compared to dynamic approaches that adjust to demand conditions.

Integrating Cost-Based Pricing with Other Strategies

Innovative businesses rarely use pure cost-based pricing in isolation; instead, they integrate it with other approaches for optimal results.

Cost-Plus as a Floor

Using cost-based calculations to establish minimum acceptable prices while setting actual prices based on value and competition creates pricing floors that prevent money-losing deals while capturing available value. A company might calculate that cost-plus-20% is $60, establish that as a floor, but price at $85 based on competitive analysis and customer value.

Hybrid Approaches

Combining cost-based calculations with competitive and value-based considerations creates balanced pricing. Start with costs to ensure viability, reference competitive prices to reflect market reality, and adjust based on the unique value delivered. This integrated approach leverages the simplicity of cost-based pricing while addressing its weaknesses.

Category-Specific Strategies

Different product categories might warrant different approaches. Commodity products use cost-plus pricing, differentiated products use value-based pricing, and promotional items use competitive pricing. This portfolio approach optimizes across the product mix rather than forcing one methodology across everything.

Segmented Pricing

Cost-based calculations might determine standard prices while allowing negotiated discounts for large customers, premium pricing for expedited service, or promotional pricing for market development. The cost-based foundation ensures general profitability while flexibility captures opportunities.

Keys to Successful Cost-Based Pricing

When businesses choose cost-based pricing, certain practices improve effectiveness.

Accurate Cost Accounting

Cost-based pricing is only as reasonable as the cost data. Investing in robust cost accounting systems, regular cost reviews, and accurate overhead allocation improves pricing accuracy. Many businesses use outdated cost data, pricing products based on historical costs that no longer reflect reality.

Regular Review and Adjustment

Costs change as supplier prices fluctuate, labor rates adjust, and operational efficiency evolves. Reviewing costs at least quarterly and adjusting prices accordingly prevents margin erosion. Many businesses set prices and then neglect reviews until profitability problems force them to pay attention.

Competitive Awareness

Even when using cost-based pricing, monitoring competitive prices ensures your calculations don't produce noncompetitive results. If cost-plus yields prices 50% above competitors', something requires attention—either cost reduction or reconsideration of pricing methodology.

Appropriate Markup Selection

Markup percentages should reflect industry norms, competitive intensity, value delivered, and business financial requirements. Unthinkingly applying 30% markups across all products ignores these factors. High-value products justify higher markups; commodity products require modest markups.

Cost Reduction Focus

Since costs drive prices, continuous cost reduction improves competitiveness. Operational efficiency, supplier negotiations, process improvements, and waste elimination all reduce costs, enabling lower prices or higher margins—creating competitive advantages.

Documentation and Justification

Maintaining clear documentation of cost calculations and the rationale for markups helps justify prices to customers, stakeholders, and, in some cases, regulators. Transparency builds trust and facilitates difficult pricing conversations.

The Future of Cost-Based Pricing

Technology, data analytics, and evolving business models are transforming pricing strategies, but cost-based pricing remains relevant in specific contexts.

Advanced analytics and AI enable more sophisticated approaches, such as dynamic and personalized pricing and algorithmic optimization, that consider costs alongside dozens of other variables. These technologies don't eliminate cost considerations but integrate them into multifaceted pricing models.

However, for small businesses, regulated industries, custom products, and commodity markets, cost-based pricing's simplicity and reliability ensure continued use. Not every business needs sophisticated pricing algorithms—many benefit most from straightforward approaches that ensure profitability.

The trend is toward hybrid models that maintain cost-based foundations while incorporating competitive intelligence, customer segmentation, and value analysis. Costs remain relevant—businesses that don't cover expenses fail—but pure cost-based pricing as the sole methodology is declining in competitive, dynamic markets.

Conclusion

Cost-based pricing offers an accessible, straightforward pricing methodology that ensures cost recovery and provides consistent profit margins. Its simplicity makes it suitable for many businesses, particularly those in commodity markets, regulated industries, or custom product segments.

However, its limitations—particularly its failure to account for customer value and competitive dynamics—can severely constrain profitability and competitiveness in markets where these factors dominate. The most successful businesses use cost-based calculations as one input among several, establishing pricing floors while setting actual prices based on comprehensive market analysis.

Understanding the mechanics, advantages, and limitations of cost-based pricing enables business leaders to apply it appropriately, integrate it with complementary strategies, and recognize when alternative approaches better serve strategic objectives.

References

  1. Nagle, T. T., Hogan, J., & Zale, J. (2016). The Strategy and Tactics of Pricing: A Guide to Growing More Profitably (6th ed.). Routledge.

  2. Simon, H., & Fassnacht, M. (2019). Price Management: Strategy, Analysis, Decision, Implementation. Springer.

  3. Dolan, R. J., & Simon, H. (1996). Power Pricing: How Managing Price Transforms the Bottom Line. Free Press.

  4. Monroe, K. B. (2003). Pricing: Making Profitable Decisions (3rd ed.). McGraw-Hill.

  5. Baker, W. L., Marn, M. V., & Zawada, C. C. (2010). The Price Advantage (2nd ed.). Wiley.

  6. Hinterhuber, A. (2004). Towards value-based pricing—An integrative framework for decision making. Industrial Marketing Management, 33(8), 765-778.

  7. Oxenfeldt, A. R. (1960). Multi-stage approach to pricing. Harvard Business Review, 38(4), 125-133.

  8. Horngren, C. T., Datar, S. M., & Rajan, M. V. (2015). Cost Accounting: A Managerial Emphasis (15th ed.). Pearson.

  9. Cooper, R., & Kaplan, R. S. (1988). Measure costs right: Make the right decisions. Harvard Business Review, 66(5), 96-103.

  10. Dean, J. (1976). Pricing policies for new products. Harvard Business Review, 54(6), 141-153.

  11. Shipley, D., & Jobber, D. (2001). Integrative pricing via the pricing wheel. Industrial Marketing Management, 30(3), 301-314.

  12. Lancioni, R. A. (2005). Pricing issues in industrial marketing. Industrial Marketing Management, 34(2), 111-114.

  13. Ingenbleek, P., Debruyne, M., Frambach, R. T., & Verhallen, T. M. (2003). Successful new product pricing practices: A contingency approach. Marketing Letters, 14(4), 289-305.

  14. Drury, C. (2013). Management and Cost Accounting (8th ed.). Cengage Learning.

  15. Kaplan, R. S., & Anderson, S. R. (2007). Time-Driven Activity-Based Costing: A Simpler and More Powerful Path to Higher Profits. Harvard Business Press.

  16. Rappaport, A. (1986). Creating Shareholder Value: The New Standard for Business Performance. Free Press.

  17. Garrison, R. H., Noreen, E. W., & Brewer, P. C. (2017). Managerial Accounting (16th ed.). McGraw-Hill Education.

  18. Noble, P. M., & Gruca, T. S. (1999). Industrial pricing: Theory and managerial practice. Marketing Science, 18(3), 435-454.

  19. Piercy, N. F., Cravens, D. W., & Lane, N. (2010). Thinking strategically about pricing decisions. Journal of Business Strategy, 31(5), 38-48.

  20. McKinsey & Company. (2023). Pricing Strategy in the Digital Age. McKinsey Quarterly.